Update doc

8 years ago · 05dbac6b39
parent 780ba5dd22
commit 05dbac6b39
1 changed files with 5 additions and 0 deletions
--- a/doc/environment_variables.md
+++ b/doc/environment_variables.md
@ -85,6 +85,11 @@ some configuration as environment variables that can be set.
  'all' can additionally be used to turn all traces on.
  Individual traces can be disabled by prefixing them with '-'.

+  'refcount' will turn on all of the tracers for refcount debugging.
+
+  if 'list_tracers' is present, then all of the available tracers will be
+  printed when the program starts up.
+
  Example:
  export GRPC_TRACE=all,-pending_tags